The Hollywood Reporter: The “Hellboy” score sounds very operatic. What inspired you to take that approach?

Marco Beltrami: On my first meeting with Guillermo (del Toro) when they were filming in Prague, he had told me how he wanted the score to feel. Then, when I saw the (footage), this approach seemed to fit very well because there are all these different strong characters who each warrant their own themes. For the most part, every scene in the film is based on some thematic element or combination of element.